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Epidemiology and risk factors of lumpy skin disease outbreak in cattle in the north-west area of Bangladesh 孟加拉国西北部地区牛皮肿块病的流行病学和风险因素
Pub Date : 2024-04-25 DOI: 10.51585/gjvr.2024.1.0078
Lumpy skin disease (LSD) is an acute viral disease of cattle that recently emerged in Bangladesh that negatively impacts livestock by reducing animal production, increasing management costs, and death of infected animals. Recently, Bangladesh has faced the ominous effects of LSD, like other countries. Because of this pressing concern, the present cross-sectional study was undertaken to determine the infection status and risk factors of LSD outbreaks from January to December 2023 in Bangladesh’s northwest area. A total of 2858 cattle from various randomly selected farms were surveyed. The diagnosis was made on the basis of clinical inspection, clinical history, and owner complaints. The overall attack rate, mortality, and case fatality were 37.6%, 2.8%, and 7.5%, respectively, but in calves (≤1 month), the attack rate, mortality, and case fatality were 44.3%, 9.3%, and 21.3%, respectively. The infection status was discussed based on age, sex, breed, genotype, health status, immune status, coat color, farm size, farming system, separation of affected animals, separation place, use of common utensils, introduction of new cattle, use of vaccine and season of the year. Among them, age, sex, breed, health status, coat color, farm size, farming system, use of common utensils, and introduction of new cattle have no significant relationship with LSD outbreaks, but in calves (≤ 1 year), age has a significant association with the occurrence of LSD. The risk factor analysis revealed that the outbreaks of LSD were significantly (p<0.05) associated with genotypes, immune status, separation place, vaccination status of farm, and season of the year. The findings of the present study could provide useful epidemiological data on risk factors associated with LSD to livestock owners, field veterinarians, and government-level livestock regulators, which will help formulate prevention and control strategies and minimize the negative impact of LSD on cattle farming.
结节性皮肤病(LSD)是最近在孟加拉国出现的一种急性牛病毒性疾病,它通过降低动物产量、增加管理成本和感染动物的死亡对牲畜产生负面影响。最近,孟加拉国与其他国家一样,也面临着 LSD 的不祥影响。鉴于这一紧迫问题,本横断面研究旨在确定 2023 年 1 月至 12 月孟加拉国西北部地区 LSD 爆发的感染状况和风险因素。共调查了 2858 头牛,这些牛来自不同的随机选择的农场。诊断依据是临床检查、临床病史和牛主投诉。总体发病率、死亡率和病死率分别为 37.6%、2.8% 和 7.5%,但犊牛(≤1 个月)的发病率、死亡率和病死率分别为 44.3%、9.3% 和 21.3%。根据年龄、性别、品种、基因型、健康状况、免疫状况、被毛颜色、养殖场规模、养殖制度、患病动物隔离、隔离场所、共用器具的使用、新牛的引进、疫苗的使用和季节等因素对感染状况进行了讨论。其中,年龄、性别、品种、健康状况、被毛颜色、养殖场规模、养殖制度、共用器具的使用和新牛的引进与 LSD 爆发无显著关系,但犊牛(≤ 1 岁)的年龄与 LSD 的发生有显著关系。风险因素分析表明,LSD 的爆发与基因型、免疫状态、分离地点、农场疫苗接种情况和季节有显著相关性(p<0.05)。本研究的结果可为畜牧业主、兽医和政府畜牧监管部门提供有关牛瘟相关风险因素的流行病学数据,有助于制定防控策略,将牛瘟对养牛业的负面影响降至最低。
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引用次数: 0
Highly pathogenic avian influenza A (H5N1) clade 2.3.4.4b virus infection in captive bears (Ursus thibetanus) and in captive and wild birds, France, 2022 2022 年法国圈养黑熊(Ursus thibetanus)及圈养鸟类和野生鸟类感染高致病性甲型禽流感(H5N1)2.3.4.4b 支系病毒的情况
Pub Date : 2024-04-23 DOI: 10.51585/gjvr.2024.3.0077
Since 2016, Europe has faced recurrent epidemics of highly pathogenic avian influenza (HPAI) A (H5N1) virus of clade 2.3.4.4b, with large numbers of deaths in wild and domestic birds. The 2022-2023 epidemic was characterized by an increase in the number of avian cases but also by an increased number of mammalian cases. Infected wild mammals were mainly marine mammals or scavengers such as foxes. Additionally, cases involving domestic mammals, like cats and farmed minks, have been documented. In December 2022, a HPAI subtype H5N1 virus belonging to clade 2.3.4.4b was identified in a captive bear and simultaneously in captive and wild birds in a wildlife park in France. Sequencing and phylogenetic analyses revealed that the bear and captive birds in the wildlife park most likely had the same origin and came directly from the infected wild birds. It is advised to monitor symptomatic domestic or captive carnivores when they come into contact with infected birds to stop the spread of the virus across species and to identify the potential mammalian-specific viral molecular markers.
自 2016 年以来,欧洲一直面临 2.3.4.4b 支系甲型高致病性禽流感(H5N1)病毒的反复流行,造成大量野生和家养鸟类死亡。2022-2023 年疫情的特点是禽类病例数量增加,但哺乳动物病例数量也有所增加。受感染的野生哺乳动物主要是海洋哺乳动物或狐狸等食腐动物。此外,还记录了涉及家养哺乳动物(如猫和养殖水貂)的病例。2022 年 12 月,在法国一个野生动物园的一只圈养黑熊身上以及圈养鸟类和野生鸟类身上同时发现了属于 2.3.4.4b 支系的高致病性禽流感亚型 H5N1 病毒。测序和系统进化分析表明,野生动物园中的黑熊和圈养鸟类很可能具有相同的来源,直接来自受感染的野生鸟类。建议在家养或人工饲养的食肉动物与受感染鸟类接触时,对有症状的家养或人工饲养的食肉动物进行监测,以阻止病毒的跨物种传播,并确定潜在的哺乳动物特异性病毒分子标记。
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引用次数: 0
Nutritional risks and consequences of meat-only diets for dogs and cats 猫狗只吃肉的营养风险和后果
Pub Date : 2024-04-16 DOI: 10.51585/gjvr.2024.1.0076
Suitable nutrition is one of the most significant issues that always needs to be considered in the health mainte-nance of living beings. One of the misconcep-tions of many societies is the exclusive feeding of meat to cats and dogs. Dogs and cats are carnivorous animals; more specifically, cats are strict or true carni-vores, while dogs are omnivores. Although cats are true carni-vores, an exclusive diet of meat will not cover their needs. Wholly meat-based diets might be rich in many nutri-ents and minerals, but they are poor in digesti-ble carbohydrates and fiber. Lack of carbohy-drates can cause gas-trointestinal problems and diarrhea. Also, due to hypovitaminosis A and D caused by such diets, skeletal diseases can be one of the seri-ous consequences. High dietary phosphate > 11.8 g in dry matter (DM) reduces renal phosphate reabsorption and increases vulnera-bility to chronic kidney disease. As phosphate excretion and reduction of calcium reabsorption continue, bone decom-position, symptoms of osteoporosis, and sec-ondary hyperparathy-roidism occur. In wholly meat-based canine di-ets, a lack of carbohy-drates compels the an-imal to use protein in the gluconeogenesis process to produce glu-cose. As a result, the body goes through pro-tein deficiency and its side effects. To main-tain digestive system health and prevent diar-rhea, the diet must in-clude soluble fiber. Al-so, the presence of car-bohydrates and fats is essential. Preserving the correct calcium-to-phosphorus ratio (Ca:P) can be solved by adding carbohydrates or using meats with a lower phosphorus content.
适当的营养是维护生物健康始终需要考虑的最重要问题之一。许多社会的误解之一是只给猫和狗吃肉。猫和狗都是肉食动物,更确切地说,猫是严格或真正的肉食动物,而狗则是杂食动物。虽然猫是真正的肉食动物,但只吃肉并不能满足它们的需要。完全以肉类为主的食物可能富含多种营养素和矿物质,但却缺乏易消化的碳水化合物和纤维。缺乏碳水化合物会导致肠胃气胀和腹泻。此外,由于这类膳食造成维生素 A 和 D 过低,骨骼疾病也可能是严重后果之一。干物质(DM)中磷酸盐含量大于 11.8 克的高日粮会降低肾脏对磷酸盐的重吸收,增加患慢性肾病的几率。随着磷酸盐排泄和钙重吸收的持续减少,会出现骨质疏松、骨质疏松症状和继发性甲状旁腺功能亢进。在完全以肉类为基础的犬饲料中,碳水化合物的缺乏迫使动物在糖元生成过程中使用蛋白质来产生葡萄糖。因此,身体会出现蛋白质缺乏症及其副作用。为了保持消化系统健康和预防腹泻,饮食中必须包括可溶性纤维。因此,碳水化合物和脂肪也必不可少。保持正确的钙磷比例(Ca:P)可以通过添加碳水化合物或使用磷含量较低的肉类来解决。
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引用次数: 0
Funiculitis causing sepsis-associated laminitis in a Mangalarga Marcha-dor gelding 在一匹曼加拉尔马查多骟马身上,由真菌感染引起的败血症相关性蹄叶炎
Pub Date : 2024-04-02 DOI: 10.51585/gjvr.2024.1.0074
Castration is one of the most common surgical procedures performed in equine practice, and potential complications may range from mild to life-threatening condi-tions. This paper aims to report clinical and la-boratory features, treatment, and long-term follow-up infor-mation in a case of fu-niculitis causing sepsis-associated laminitis and acute renal failure (ARF) in a Mangalarga Marchador gelding. A 5-years-old Mangalarga Marchador gelding was referred for hospital care after seven days of an open orchiectomy approach on farm-setting. Physical exami-nation revealed hypere-mic mucous mem-branes, dehydration, tachycardia, scrotal swelling with a foul-smelling serousangui-nous discharge, in-creased hoof tempera-ture and digital pulse amplitude, and lame-ness. Laboratory find-ings included leukocy-tosis by neutrophilia, hypoalbuminemia, high creatinine, and urea levels, and an increased number of bacteria, leukocytes, and hyaline cylinders on urine anal-ysis. After three days of intensive care, the horse underwent gen-eral anesthesia for scro-tal ablation and resec-tion of the infected spermatic cord stumps. Microbiological assays revealed Streptococcus spp. and a multi-resistant Escherichia coli. This report high-lights uncommon post-castration complications in a Mangalarga Marchador gelding as a consequence of septic funiculitis. Further-more, the microbiologi-cal isolation of a multi-resistant E. coli strain raises concerns about the indiscriminate use of antibiotics in equine practice.
阉割是马术中最常见的外科手术之一,潜在的并发症从轻微到危及生命不等。本文旨在报告一例睾丸炎引起败血症相关性蹄叶炎和急性肾衰竭(ARF)的曼格拉加-马查多(Mangalarga Marchador)骟马的临床和实验室特征、治疗和长期随访信息。一匹 5 岁的曼加拉加马查多骟马在农场接受开放式睾丸切除术 7 天后被转到医院治疗。体格检查发现其黏膜充血、脱水、心动过速、阴囊肿胀并伴有恶臭的浆液性分泌物、蹄温和数字脉搏振幅增大以及跛行。实验室检查结果包括中性粒细胞增多引起的白细胞增多症、低白蛋白血症、肌酐和尿素水平升高,以及尿液分析中细菌、白细胞和透明圆柱数量增加。经过三天的重症监护后,这匹马接受了全身麻醉,进行了鳞状切除术,并切除了受感染的精索残端。微生物检测发现了链球菌和耐多种细菌的大肠杆菌。本报告着重介绍了一匹曼加拉马查多公马因化脓性真菌炎而导致的不常见的阉割后并发症。此外,从微生物学角度分离出的多重耐药大肠杆菌菌株也引起了人们对在马场滥用抗生素的担忧。
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引用次数: 0
A systematic scoping review of microbial pathogens in ruminants with or without a history of abortions in Nigeria 对尼日利亚有或没有堕胎史的反刍动物的微生物病原体进行系统的范围审查
Pub Date : 2023-11-01 DOI: 10.51585/gjvr.2023.3.0062
Kabiru O. Akinyemi, Samuel O. Ajoseh, Abdul-Azeez Anjorin, Wasiu O. Salami, Aminat O. Lawal, Marwa Bassiouny, Heinrich Neubauer, Gamal Wareth
Abortifacient pathogens such as bacterial [Brucella spp., Listeria spp., Leptospira interrogans ser., Coxiella burnetii, Campylobacter spp., Anaplasma spp., Chlamydia spp.], mycotic [Aspergillus spp. and Candida spp.], protozoan [Toxoplasma gondii, Neospora spp.], and viral [Blue tongue virus (BTV), Schmallenberg virus (SBV), Bovine viral diarrhea virus (BVDV), and Peste des petits ruminants virus (PPRV)] pathogens are challenges for the productive and reproductive performance of ruminants (cattle, sheep, and goats) globally. No comprehensive report on epidemiology, associated risk factors, or economic burden of these infectious pathogens is available for Nigeria. This review estimated the distribution and burden of abortive pathogens in ruminants in Nigeria for the last twenty-two years (2000-2022). Research articles reporting the detection of any of the above-mentioned abortive pathogens in ready-to-slaughter ruminants (RTSR), sick ruminants (SR), and ruminants with abortive history (RWAH) in Nigeria were accessed using different repositories, including Google Scholar, Proquest, PubMed, ResearchGate and Scopus to determine the prevalence, spatial distribution, and associated risk factors. From a total of 140 articles selected for this review, eight bacterial, four viral, two parasitic, and two mycotic infectious agents were reported for Nigeria. This study reveals a prevalence of 28.2% viral agents, 14.43% bacterial pathogens, 14.24% protozoans, and 28.1% fungal agents in the reported tested samples. Brucellosis was the most often reported among bacterial diseases, followed by leptospirosis and listeriosis. PPRV infection was the most common viral disease, followed by BTV. Additionally, two parasitic diseases, neosporosis and toxoplasmosis, and two mycotic diseases, aspergillosis and candidiasis, were reported. In this study, stillbirth and abortion were recorded in 49.2% of sheep with PPRV, 58.95% in goats with Chlamydophila abortus and PPRV, and 6.4% in cattle with Brucella abortus and Histophilus somni infections. Lack of vaccines, open markets, and extensive husbandry systems were among the risk factors associated with different abortive pathogens. This study is a useful tool for researchers and government officers in risk assessment and management of livestock to improve livestock production in Nigeria
导致流产的病原体如细菌[布鲁氏菌,李斯特菌,钩端螺旋体]。布氏柯谢氏菌、弯曲杆菌、无原体、衣原体、真菌[曲霉属和念珠菌属]、原生动物[刚地弓形虫、新孢子虫]和病毒[蓝舌病毒(BTV)、施马伦伯格病毒(SBV)、牛病毒性腹泻病毒(BVDV)和小反刍动物病毒(PPRV)]病原体对全球反刍动物(牛、绵羊和山羊)的生产和繁殖性能构成挑战。尼日利亚没有关于这些传染性病原体的流行病学、相关危险因素或经济负担的综合报告。本综述估计了过去22年(2000-2022年)尼日利亚反刍动物中流产病原体的分布和负担。通过谷歌Scholar、Proquest、PubMed、ResearchGate和Scopus等不同的资源库,对报告在尼日利亚宰前反刍动物(RTSR)、病反刍动物(SR)和有流产史的反刍动物(RWAH)中检测到上述流产致病菌的研究文章进行了检索,以确定其患病率、空间分布和相关危险因素。从本综述选择的140篇文章中,尼日利亚报告了8种细菌、4种病毒、2种寄生虫和2种真菌感染因子。该研究显示,在报告的检测样本中,病毒病原体的患病率为28.2%,细菌病原体的患病率为14.43%,原生动物的患病率为14.24%,真菌病原体的患病率为28.1%。在细菌性疾病中,布鲁氏菌病是最常报告的,其次是钩端螺旋体病和李斯特菌病。PPRV感染是最常见的病毒性疾病,其次是BTV。此外,还报告了两种寄生虫病,即新孢子病和弓形虫病,以及两种真菌病,即曲霉病和念珠菌病。在本研究中,感染PPRV的绵羊的死产和流产率为49.2%,感染流产衣原体和PPRV的山羊的死产和流产率为58.95%,感染流产布鲁氏菌和somni组织菌的牛的死产和流产率为6.4%。缺乏疫苗、开放的市场和粗放的饲养系统是与各种流产病原体相关的危险因素。这项研究是研究人员和政府官员进行牲畜风险评估和管理以改善尼日利亚畜牧业生产的有用工具
{"title":"A systematic scoping review of microbial pathogens in ruminants with or without a history of abortions in Nigeria","authors":"Kabiru O. Akinyemi, Samuel O. Ajoseh, Abdul-Azeez Anjorin, Wasiu O. Salami, Aminat O. Lawal, Marwa Bassiouny, Heinrich Neubauer, Gamal Wareth","doi":"10.51585/gjvr.2023.3.0062","DOIUrl":"https://doi.org/10.51585/gjvr.2023.3.0062","url":null,"abstract":"Abortifacient pathogens such as bacterial [Brucella spp., Listeria spp., Leptospira interrogans ser., Coxiella burnetii, Campylobacter spp., Anaplasma spp., Chlamydia spp.], mycotic [Aspergillus spp. and Candida spp.], protozoan [Toxoplasma gondii, Neospora spp.], and viral [Blue tongue virus (BTV), Schmallenberg virus (SBV), Bovine viral diarrhea virus (BVDV), and Peste des petits ruminants virus (PPRV)] pathogens are challenges for the productive and reproductive performance of ruminants (cattle, sheep, and goats) globally. No comprehensive report on epidemiology, associated risk factors, or economic burden of these infectious pathogens is available for Nigeria. This review estimated the distribution and burden of abortive pathogens in ruminants in Nigeria for the last twenty-two years (2000-2022). Research articles reporting the detection of any of the above-mentioned abortive pathogens in ready-to-slaughter ruminants (RTSR), sick ruminants (SR), and ruminants with abortive history (RWAH) in Nigeria were accessed using different repositories, including Google Scholar, Proquest, PubMed, ResearchGate and Scopus to determine the prevalence, spatial distribution, and associated risk factors. From a total of 140 articles selected for this review, eight bacterial, four viral, two parasitic, and two mycotic infectious agents were reported for Nigeria. This study reveals a prevalence of 28.2% viral agents, 14.43% bacterial pathogens, 14.24% protozoans, and 28.1% fungal agents in the reported tested samples. Brucellosis was the most often reported among bacterial diseases, followed by leptospirosis and listeriosis. PPRV infection was the most common viral disease, followed by BTV. Additionally, two parasitic diseases, neosporosis and toxoplasmosis, and two mycotic diseases, aspergillosis and candidiasis, were reported. In this study, stillbirth and abortion were recorded in 49.2% of sheep with PPRV, 58.95% in goats with Chlamydophila abortus and PPRV, and 6.4% in cattle with Brucella abortus and Histophilus somni infections. Lack of vaccines, open markets, and extensive husbandry systems were among the risk factors associated with different abortive pathogens. This study is a useful tool for researchers and government officers in risk assessment and management of livestock to improve livestock production in Nigeria","PeriodicalId":496728,"journal":{"name":"German journal of veterinary research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135515290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Contagious caprine pleuropneumonia: A review of the global situation with a special reference to Oman 传染性山羊胸膜肺炎:对全球形势的回顾,特别提到阿曼
Pub Date : 2023-10-01 DOI: 10.51585/gjvr.2023.3.0060
Haytham Ali, Aida Altubi, Mahmoud El-Neweshy, Elshafie Ibrahim Elshafie
Contagious caprine pleuropneumonia (CCPP) is a severe infectious disease caused by Mycoplasma capricolum subsp. capripneumoniae (Mccp) and infects goats, sheep, and wild ruminants. CCPP is characterized by high morbidity and mortality rates reaching up to (100% and 80%), respectively. The disease affects goat farming around the globe in more than 30 countries, particularly in Asia, the Middle East, and Africa. CCPP is manifested in peracute, acute, or chronic forms. The general characteristic clinical signs of the disease are rapid, painful, and labored respiration, dyspnea, nasal discharge, coughing, hyperthermia (41°C), anorexia, emaciation, and abnormal posture. Lesions induced by CCPP are restricted to the pleural cavity in the form of unilateral serofibrinous, pleuropneumonia, accumulation of fluid in the chest cavity, lung congestion, hepatization, formation of adhesion to the pleural coastal, and swollen mediastinal and bronchial lymph nodes. Disease diagnosis encompasses a range of methods, including bacterial culture, isolation, and identification, pathological, serological, and molecular tests. The present review provides an overview of the historical perspective, epidemiological factors, and recommended diagnostic and control strategies for CCPP in Oman.
传染性山羊胸膜肺炎(CCPP)是由山羊支原体亚种引起的严重传染病。卡普肺炎(capripneumoniae, Mccp)感染山羊、绵羊和野生反刍动物。CCPP的特点是发病率和死亡率分别高达100%和80%。这种疾病影响着全球30多个国家的山羊养殖,特别是在亚洲、中东和非洲。CCPP表现为过急性、急性或慢性形式。本病的一般特征性临床体征为呼吸急促、疼痛和吃力、呼吸困难、流鼻水、咳嗽、高热(41°C)、厌食、消瘦和姿势异常。CCPP引起的病变局限于胸膜腔,表现为单侧浆液性纤维质、胸膜肺炎、胸腔积液、肺充血、肝化、胸膜沿岸粘连形成、纵隔和支气管淋巴结肿大。疾病诊断包括一系列方法,包括细菌培养、分离和鉴定、病理、血清学和分子测试。本综述概述了阿曼CCPP的历史观点、流行病学因素以及推荐的诊断和控制策略。
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引用次数: 0
Evaluation of Aspergillus meal prebiotic in productive parameters, bone mineralization and intestinal integrity in broiler chickens 曲霉菌粕益生元对肉鸡生产参数、骨矿化和肠道完整性的影响
Pub Date : 2023-10-01 DOI: 10.51585/gjvr.2023.3.0061
Kristen Martin, Lauren Laverty, Raphael L. A. Filho, Xochitl Hernandez-Velasco, Roberto Señas-Cuesta, Latasha S. Gray, Raul F. R. Marcon, Andressa Stein, Makenly E. Coles, Ileana Loeza, Inkar Castellanos-Huerta, Saeed El-Ashram, Ebtsam Al-Olayan, Guillermo Tellez-Isaias, Juan D. Latorre
This study investigates the effects of Aspergillus meal prebiotic on a spectrum of parameters, including productive performance, bone mineralization, and intestinal integrity, in broiler chickens. Day-of-hatch Cobb 500 by-product male chicks (320 total) were randomly assigned to two experimental groups (G1 and G2) in floor pens (150×300 cm), each pen containing separate feeders and watering systems (8 replicates per treatment, 20 birds/pen). Chickens kept in G1 (control) were fed a basal diet, while those of G2 (treated) were fed a basal diet supplemented with 0.2% PRI-A-FERM. Performance parameters, including body weight (BW), body weight gain (BWG), feed intake (FI), and feed conversion ratio (FCR), were evaluated weekly from the 7th day to the end of the trial at 42 d. Fluorescein isothiocyanate-dextran (FITC-d) was administered via oral gavage to 3 chickens/replicate (n = 24), and blood was collected on 21d and on 42d to determine serum concentration of FITC-d as a biomarker to evaluate intestinal permeability and peptide YY as an indirect biomarker to evaluate short chain fatty acids. Chickens that received the textit{Aspergillus} meal prebiotic showed a significant increase in BW, BWG, and FI on days 14, 21, 28, 35, and 42 (P<0.05) and a significant reduction in FCR on days 28, 35, and 42 of evaluation compared to control. Moreover, chickens that were supplemented with the Aspergillus meal prebiotic showed a significant reduction in serum concentrations of FITC-d on both days of evaluation, as well as a significant increase in serum concentration of peptide YY. Additionally, treated animals significantly increased bone strength, total bone ash, and calcium and phosphorous content at both evaluation times compared to the control. In summary, the results of this study suggest that Aspergillus meal prebiotic supplementation can positively influence productive parameters, bone mineralization, and intestinal integrity in broiler chickens. The observed improvements underscore the importance of gut health in overall poultry performance. The findings contribute to the growing body of knowledge on the benefits of prebiotics (0.2%, PRI-A-FERM) in animal nutrition and highlight the potential for their practical application in enhancing poultry production systems. Further research is warranted to elucidate the underlying mechanisms and optimize prebiotic utilization for improved broiler health and productivity
本研究探讨了曲霉膳食益生元对肉鸡生产性能、骨矿化和肠道完整性等一系列参数的影响。试验选取科布副产公雏鸡500只(共320只),随机分为G1组和G2组,饲养在地板栏(150×300 cm)内,每个栏设置单独的喂食器和饮水系统(每个处理8个重复,20只/栏)。G1组(对照组)饲喂基础饲粮,G2组(处理组)饲喂在基础饲粮中添加0.2的试验饲粮% PRI-A-FERM. Performance parameters, including body weight (BW), body weight gain (BWG), feed intake (FI), and feed conversion ratio (FCR), were evaluated weekly from the 7th day to the end of the trial at 42 d. Fluorescein isothiocyanate-dextran (FITC-d) was administered via oral gavage to 3 chickens/replicate (n = 24), and blood was collected on 21d and on 42d to determine serum concentration of FITC-d as a biomarker to evaluate intestinal permeability and peptide YY as an indirect biomarker to evaluate short chain fatty acids. Chickens that received the textit{Aspergillus} meal prebiotic showed a significant increase in BW, BWG, and FI on days 14, 21, 28, 35, and 42 (P<0.05) and a significant reduction in FCR on days 28, 35, and 42 of evaluation compared to control. Moreover, chickens that were supplemented with the Aspergillus meal prebiotic showed a significant reduction in serum concentrations of FITC-d on both days of evaluation, as well as a significant increase in serum concentration of peptide YY. Additionally, treated animals significantly increased bone strength, total bone ash, and calcium and phosphorous content at both evaluation times compared to the control. In summary, the results of this study suggest that Aspergillus meal prebiotic supplementation can positively influence productive parameters, bone mineralization, and intestinal integrity in broiler chickens. The observed improvements underscore the importance of gut health in overall poultry performance. The findings contribute to the growing body of knowledge on the benefits of prebiotics (0.2%, PRI-A-FERM) in animal nutrition and highlight the potential for their practical application in enhancing poultry production systems. Further research is warranted to elucidate the underlying mechanisms and optimize prebiotic utilization for improved broiler health and productivity
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引用次数: 0
Effectiveness of standardized red orange extract (Citrus sinensis) for weight reduction in canine obesity 标准红橙提取物(柑橘sinensis)对犬肥胖减肥的有效性
Pub Date : 2023-09-01 DOI: 10.51585/gjvr.2023.2.0057
Emerson Milla, Ivo Ilvan Kerppers
Obesity is the most common nutritional disease in both humans and dogs, currently characterized as a low-intensity inflammatory state. The anthocyanins found in red oranges can assist in combating weight gain and reducing body fat accumulation by reducing lipogenesis and modulating inflammation. This study aimed to compare the effectiveness of standardized dried red orange extract in reducing overweight in obese dogs compared to chromium picolinate and a placebo. In total, 23 animals were used in the current study and divided randomly into three experimental groups. All dogs received the same hypocaloric diet and supplementation: standardized Citrus sinensis red-orange extract (G1, n=9), chromium picolinate (G2, n=7), and a placebo-control group (G3, n=7). The dogs were managed by their owners for 90 days. In the distribution of the body condition score (BCS) determined at the beginning of the study, 47.8% of the animals had BCS of 6; 26.1% had BCS of 7; 8.7% had BCS of 8, and 17.4% had BCS of 9. During the program, most of the owners reported being unable to involve other residents of their households in the dogs' treatment. At the end of the experiment, the G1 group had a significant reduction in weight and BCS (p<0.01), as well as in HDL cholesterol levels (p<0.05) when compared to the other groups. It was concluded that incorporating dried red-orange extract into the diet of overweight and obese dogs can lead to weight loss and improved BCS.
肥胖是人类和狗中最常见的营养性疾病,目前的特征是低强度炎症状态。在红橙子中发现的花青素可以通过减少脂肪生成和调节炎症来帮助对抗体重增加和减少体内脂肪积累。本研究旨在比较标准化干红橙提取物与吡啶甲酸铬和安慰剂相比在减轻肥胖狗超重方面的有效性。本研究共使用23只动物,随机分为三个实验组。所有狗均接受相同的低热量饮食和补充:标准化的柑橘红橙提取物(G1, n=9),吡啶甲酸铬(G2, n=7)和安慰剂对照组(G3, n=7)。这些狗由它们的主人管理90天。在研究开始时测定的体况评分(BCS)分布中,47.8%的动物BCS为6分;26.1%的患者BCS为7;8.7% BCS为8分,17.4% BCS为9分。在这个项目中,大多数狗主人报告说,他们无法让家里的其他居民参与到狗的治疗中来。实验结束时,与其他组相比,G1组的体重和BCS (p<0.01)以及高密度脂蛋白胆固醇水平(p<0.05)均显著降低。综上所述,在超重和肥胖犬的饮食中加入干红橙提取物可以减轻体重并改善BCS。
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引用次数: 0
The combined effects of probiotic CLOSTAT® and Aviboost® supplement on growth performance, intestinal morphology, and immune response of broiler chickens 饲粮中添加CLOSTAT®和Aviboost®益生菌对肉鸡生长性能、肠道形态和免疫反应的影响
Pub Date : 2023-09-01 DOI: 10.51585/gjvr.2023.3.0058
Ahmed H. Abed, smail A. Radwan, Ahmed Orabi, Khaled T. Abdelaziz
The present study assessed the effects of dietary supplementation of probiotic CLOSTAT®, alone or in combination with Aviboost® supplement, on growth performance, intestinal histomorphology, and immune response in broiler chickens. A total of 600 one-day-old broiler chicks were divided into three groups: G1 (non-treated negative control group), G2 (probiotic CLOSTAT®- and Aviboost®-treated group), and G3 (probiotic CLOSTAT®- treated group). Feed intake and mean body weight were measured weekly for all groups. Sera were collected for cytokine analysis, and duodenal samples were also collected for histomorphological examination. The results revealed that the mean body weight gain was significantly increased to 2.25 and 2.2 kg/bird in G2 and G3, respectively, compared to 1.95 kg/bird in G1. Similarly, the feed conversion ratio (FCR) was improved to 1.56 and 1.59 in G2 and G3, respectively, compared to 1.8 in G1. Serum interferon-γ (IFN-γ) and interleukin (IL)-6 protein concentrations were significantly increased in G2 and G3 compared to G1. Furthermore, the absorptive cells of the villi revealed structural changes, including hyperplasia and increased goblet cell population and microvilli height, in G2 and G3 compared to G1. The lamina propria of duodenal villi in G2 and G3 showed increased cellularity at 22 days of age. In conclusion, the individual supplementation of CLOSTAT® and Aviboost® led to enhanced performance, intestinal morphology, and immune response. While their simultaneous supplementation slightly improved the body weight gain and FCR but did not exhibit synergistic or additive effects on intestinal morphology and systemic immune response.
本研究评估了饲粮中单独或联合添加益生菌CLOSTAT®对肉鸡生长性能、肠道组织形态学和免疫反应的影响。选取600只1日龄肉仔鸡,分为3组:G1组(未处理阴性对照组)、G2组(益生菌CLOSTAT®和Aviboost®处理组)和G3组(益生菌CLOSTAT®处理组)。各组采食量和平均体重每周测定一次。收集血清进行细胞因子分析,并收集十二指肠标本进行组织形态学检查。结果表明,G2和G3组的平均增重分别为2.25和2.2 kg/只,而G1组的平均增重为1.95 kg/只。同样,饲料系数(FCR)在G2和G3组分别由G1组的1.8提高到1.56和1.59。血清干扰素-γ (IFN-γ)和白细胞介素(IL)-6蛋白浓度在G2和G3较G1显著升高。此外,与G1相比,G2和G3绒毛吸收细胞出现结构变化,包括增生,杯状细胞数量和微绒毛高度增加。22日龄时,G2和G3的十二指肠肠绒毛固有层细胞增多。综上所述,单独补充CLOSTAT®和Aviboost®可提高生产性能、肠道形态和免疫反应。同时添加这两种添加剂可以略微改善体重增加和饲料转化率,但对肠道形态和全身免疫反应没有增效或累加效应。
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引用次数: 2
Effects of chronic stress and intestinal inflammation on commercial poultry health and performance: A review 慢性应激和肠道炎症对商品家禽健康和生产性能的影响
Pub Date : 2023-04-01 DOI: 10.51585/gjvr.2023.1.0051
Guillermo Tellez-Isaias, Wolfgang Eisenreich, Victor M. Petrone-Garcia, Xochitl Hernandez-Velasco, Castellanos-Huerta Castellanos-Huerta, Guillermo Tellez Jr, Juan D. Latorre, Walter G. Bottje, Roberto Senas-Cuesta, Makenly E. Coles, Billy M. Hargis, Saeed El-Ashram, Brittany D. Graham, Awad A. Shehata
The gastrointestinal tract provides the biological environment for nutrient digestion and absorption. Its physical and chemical barriers are crucial to protect from invading pathogens and toxic substances. On this basis, the intactness of the gastrointestinal tract, with its multiple functions and impacts, is one of the key prerequisites for human and animal health. Undoubtedly, the functions of a healthy gut system also largely benefit the welfare and performance of animals in farming systems such as poultry industries. Broiler chickens grow rapidly, as a result of rigorous genetic programs, due to the high absorption capacity of intestinal epithelia for nutrients, the quick transport of nutrients to the muscle, and their efficient conversion into energy and biomass. Due to oxygen metabolism or enteric commensal bacteria, intestinal epithelial cells create reactive oxygen and nitrogen species physiologically. However, increased generation of these oxidants goes along with the formation of free radicals resulting in oxidative stress causing lipid peroxidation and dramatic molecular changes in the structure and function of the cell and mitochondrial membranes. These effects contribute to chronic oxidative stress and inflammation of the gastrointestinal tract and generally affect all chicken organs, tissues, and cells. Hence, all forms of chronic stress, regardless of the origin, negatively impact the chicken's overall performance, health, and welfare. This review article highlights some enteric inflammation models and biomarkers to evaluate gut integrity in chickens and discusses the repercussions that chronic stress and intestinal inflammation have on the health and performance of commercial poultry
胃肠道为营养物质的消化和吸收提供了生物环境。它的物理和化学屏障对防止入侵的病原体和有毒物质至关重要。在此基础上,具有多种功能和影响的胃肠道的完整性是人类和动物健康的关键先决条件之一。毫无疑问,健康的肠道系统的功能也在很大程度上有利于养殖系统(如家禽业)中动物的福利和生产性能。由于肠道上皮对营养物质的高吸收能力,营养物质快速运输到肌肉,并有效地转化为能量和生物量,肉鸡生长迅速,这是严格的遗传程序的结果。由于氧代谢或肠道共生菌,肠上皮细胞产生活性氧和活性氮。然而,随着自由基的形成,这些氧化剂的生成增加,导致氧化应激,导致脂质过氧化和细胞和线粒体膜结构和功能的剧烈分子变化。这些影响导致慢性氧化应激和胃肠道炎症,并通常影响鸡的所有器官、组织和细胞。因此,所有形式的慢性压力,无论来源如何,都会对鸡的整体性能、健康和福利产生负面影响。本文综述了一些用于评估鸡肠道完整性的肠道炎症模型和生物标志物,并讨论了慢性应激和肠道炎症对商品家禽健康和生产性能的影响
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引用次数: 4
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German journal of veterinary research
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